technology.dice.dicewhere.decorator

Class DecoratorDbReader<T extends DecoratorInformation>

java.lang.Object

technology.dice.dicewhere.decorator.DecoratorDbReader<T>

Direct Known Subclasses:

MaxmindVpnDecoratorDbReader

public abstract class DecoratorDbReader<T extends DecoratorInformation>
extends Object

Reads one line at a time from the provided DB. Only hold one line in memory and stop reading when an IP is reached, that is outside of the requested one

T lastFetched holds the last line that was read from the DB The reader will keep reading until it reaches the end of the file or the end of the requested ip range;

Constructor Summary

Constructors

Constructor and Description
DecoratorDbReader()

Method Summary

Modifier and Type	Method and Description
List<T>	fetchForRange(IP rangeBoundStart, IP rangeBoundEnd)
protected Optional<T>	getLastFetched()
protected abstract Optional<T>	parseDbLine(String line)
protected abstract Optional<T>	readNextLine()
protected void	setLastFetched(T lastFetched) The last successfully parsed line read from the provided decorating DB

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DecoratorDbReader

public DecoratorDbReader()

Method Detail

getLastFetched

protected Optional<T> getLastFetched()

setLastFetched

protected void setLastFetched(T lastFetched)

The last successfully parsed line read from the provided decorating DB

Parameters:

lastFetched - set the last fetched line to the passed argument

fetchForRange

public final List<T> fetchForRange(IP rangeBoundStart,
                                   IP rangeBoundEnd)

readNextLine

protected abstract Optional<T> readNextLine()

parseDbLine

protected abstract Optional<T> parseDbLine(String line)